Hostname: page-component-78c5997874-94fs2 Total loading time: 0 Render date: 2024-11-10T13:31:41.613Z Has data issue: false hasContentIssue false

21 cm Searches for Dim Galaxies

Published online by Cambridge University Press:  05 March 2013

Mike Disney
Affiliation:
University of Wales College of Cardiff, PO Box 913, Cardiff CF2 5YB, UK; mjd@astro.cf.ac.uk
Gareth Banks
Affiliation:
University of Wales College of Cardiff, PO Box 913, Cardiff CF2 5YB, UK; gdb@astro.cf.ac.uk Australia Telescope National Facility, CSIRO, PO Box 76, Epping 2121, Australia
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We review very strong selection effects which operate against the detection of dim (i.e. low surface brightness) galaxies. The Parkes multibeam instrument offers a wonderful opportunity to turn up new populations of such galaxies. However, to explore the newly accessible parameter space, it will be necessary to survey both a very deep patch (105 s/pointing, limiting Nhi ∼ 1018 cm−2) and a deep patch (104 s/pointing, limiting Nhi ∼ 3 × 1018 cm−2) in carefully selected areas, and we outline the case to do this.

Type
Research Article
Copyright
Copyright © Astronomical Society of Australia 1997

References

Bergeron, J. 1997, HST and the Deep Universe, Proceedings of the 1996 Herstmonceux Conference, to be published de Blok, W. J. G., McGaugh, S. S., van der Hülst, J. M. 1996, MNRAS, in pressGoogle Scholar
Bothun, G. D., Impey, C. D., Malin, D. F., Mould, J. R. 1987, AJ, 94, 23 CrossRefGoogle Scholar
Briggs, F. H. 1990, AJ, 100, 999 CrossRefGoogle Scholar
Corbelli, E., & Salpeter, E. E. 1993, ApJ, 419, 104 CrossRefGoogle Scholar
Corbelli, E., & Schneider, S. E. 1997, ApJ, 479, 244 CrossRefGoogle Scholar
Corbelli, E., Schneider, S. E., & Salpeter, E. E. 1989, AJ, 97, 390 CrossRefGoogle Scholar
de Vaucouleurs, G. 1959, Handbuch der Physik, 53, 311 Google Scholar
Dickey, J. 1997, MNRAS, submittedGoogle Scholar
Disney, M. J. 1976, Nature, 263, 573 CrossRefGoogle Scholar
Disney, M. J. 1980, ESO/ESA Workshop on Dwarf Galaxies, ed. M. Tareghi & K. Kjar (Munich: ESO), p. 151 Google Scholar
Disney, M. J., & Phillipps, S. 1983, MNRAS, 205, 1253 CrossRefGoogle Scholar
Dove, J. B., & Schull, J. M. 1994, ApJ, 423, 196 CrossRefGoogle Scholar
Fish, R. A. 1964, ApJ, 139, 284 CrossRefGoogle Scholar
Freeman, K. C. 1970, ApJ, 160, 811 CrossRefGoogle Scholar
de Jong, R. S. 1995, ‘Spiral Galaxies’, PhD thesis, University of Gronnigen Google Scholar
McGaugh, S. S. 1996, MNRAS, 280, 337 CrossRefGoogle Scholar
Maloney, P. 1993, ApJ, 414, 41 CrossRefGoogle Scholar
Phillipps, S., Disney, M. J., Kibblewhite, E. J., & Cawson, M. G. M. 1987, MNRAS, 229, 505 CrossRefGoogle Scholar
Rohlfs, K. 1986, Tools of Radio Astronomy (New York: Springer)CrossRefGoogle Scholar
Schecter, P. 1976, ApJ, 203, 297 CrossRefGoogle Scholar
Schombert, J. M., Bothun, G. D., Schneider, S. E., & McGaugh, S. S. 1992, AJ, 103, 1107 CrossRefGoogle Scholar
Shostak, G. S. 1977, A&A, 54, 919 Google Scholar
Sprayberry, D., Impey, C.D., Bothun, G. D., & Irwin, M. J. 1995 a, AJ, 109, 558 CrossRefGoogle Scholar
Sprayberry, D., Bernstein, G. M., Impey, C. D., & Bothun, G. D. 1995 b, ApJ, 438, 72 CrossRefGoogle Scholar
Turner, J. A., Phillipps, S., Davies, J. L., & Disney, M. J. 1993, MNRAS, 261, 39 CrossRefGoogle Scholar
Tytler, D. 1987, ApJ, 321, 49 CrossRefGoogle Scholar
van Gorkom, J. 1993, in The Environment and Evolution of Galaxies, ed. Schull, J. M. & Thronson, H. A. Jr (Amsterdam: Kluwer), p. 345 CrossRefGoogle Scholar